Device capable of controlling clamping rotation angle of vessel forceps

Abstract

The utility model relates to the technical field of medical instruments, and discloses a device capable of controlling the clamping rotation angle of vessel forceps, the device comprises a first clamping part, a second clamping part and a control assembly for controlling the first clamping part and the second clamping part to be close to or away from each other, the first clamping part and the second clamping part are rotationally connected, and the first clamping part and the second clamping part are rotationally connected. The first clamping part and the second clamping part are respectively provided with a protruding part, a clamping body of the vessel forceps is provided with a groove, and the protruding parts are matched with the grooves. According to the vessel forceps, the clamping stability and adjustability can be guaranteed, and the clamping angle of the vessel forceps can be adjusted according to needs in the operation process.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a device capable of controlling the clamping rotation angle of a vascular clamp. Background Art

[0002] Heart bypass surgery, also known as coronary artery bypass grafting (CABG), is now widely performed worldwide. It is not only suitable for patients with severe coronary atherosclerotic heart disease, but also for patients with complex congenital heart disease, valvular disease, and other coronary artery disease. At the same time, for some high-risk patients, such as those with left main coronary artery disease, multivessel disease, and diabetes, COBG remains the preferred treatment.

[0003] However, during the transplant surgery, a vascular clamp is needed to locally clamp the aorta, which will twist the position where the transplant is required. Currently, there are many types of clamps on the market, but most of them are not very effective.

[0004] The traditional clamp head relies on serrations to cooperate with the vascular clamp to rotate the angle. However, long-term use will cause wear, chipping, and serrations to fall off, resulting in incomplete rotation. It may also cause the instrument to fall accidentally or cause unnecessary damage to surrounding tissues, and other infections. Summary of the Invention

[0005] In order to make the operation of the vascular clamp more stable after being clamped, the present application provides a device that can control the clamping rotation angle of the vascular clamp.

[0006] The present application provides a device capable of controlling the rotation angle of a vascular clamp, which adopts the following technical solution:

[0007] A device capable of controlling the rotation angle of a vascular clamp comprises a first clamping portion and a second clamping portion, and a control assembly for controlling the first clamping portion and the second clamping portion to move closer or further apart. The first clamping portion and the second clamping portion are rotatably connected, and both the first clamping portion and the second clamping portion are provided with a protrusion. The clamping body of the vascular clamp is provided with a groove, and the protrusion and the groove cooperate with each other.

[0008] By adopting this technical solution, the arrangement of the first and second clamping parts, in conjunction with the control assembly, enables precise control of the clamp's grip. The coordinated design of the raised and recessed portions ensures clamping stability and adjustability, allowing the clamp's grip angle to be adjusted as needed during surgery, improving surgical precision and efficiency.

[0009] Optionally, the clamping body of the vascular clamp is a cylindrical structure, and the grooves are evenly spaced along the circumference of the clamping body.

[0010] By adopting this technical solution, the cylindrical structure design allows for smoother rotation of the clamp, reducing friction caused by irregular shapes. The grooves are evenly spaced along the circumference, providing multiple clamping positions, allowing the surgeon to select the appropriate clamping angle as needed, enhancing surgical flexibility.

[0011] Optionally, both the first clamping portion and the second clamping portion include a semicircular ring structure.

[0012] By adopting the above technical solution, the semi-circular ring structure design allows the clamp to better adapt to the shape of the vascular clamp, enhancing the tightness and stability of the clamp. It can better adapt to the shape of blood vessels and other tissues, reduce excessive squeezing and distortion of tissues, and thus protect tissue integrity and function. At the same time, this structure also facilitates cooperation with the clamp body of the vascular clamp, making the adjustment of the rotation angle smoother and more precise.

[0013] Optionally, the control assembly includes a first control body for connecting to the first clamping portion and a second control body for connecting to the second clamping portion, and the first control body and the second control body are moved closer to or farther away from each other by rotating.

[0014] By adopting the above technical solution, this design allows the surgeon to control the opening, closing, and rotation of the clamp by operating the control body, achieving remote control of the clamp's clamping angle. The rotating shaft connection ensures smooth and accurate control, improving the convenience of surgical operations.

[0015] Optionally, the first control body includes a first connecting rod and a first control rod, one end of the first connecting rod is fixedly connected to the first clamping portion, and the other end of the first connecting rod is fixedly connected to the first control rod, the second control body includes a second connecting rod and a second control rod, one end of the second connecting rod is rotatably connected to the first clamping portion, the other end of the second connecting rod is rotatably connected to the second control rod, and an end of the first control rod close to the first connecting rod is rotatably connected to the second control rod via a pin shaft.

[0016] By adopting the above technical solution, the first and second control bodies, through the design of the connecting rod and control lever, achieve effective connection and control of the clamping portion. The combination of the fixed connection and the rotating connection of the connecting rod makes the movement of the clamping portion more flexible and variable. This structure also facilitates the surgeon's grip and operation through the finger ring buckle, improving the stability and comfort of the surgical operation.

[0017] Optionally, the first connecting rod is hollow inside, the second connecting rod passes through the first connecting rod, and both ends of the second connecting rod are located outside the first connecting rod.

[0018] By adopting the above technical solution, the internal structure of the control component is optimized, making the overall structure more compact and lightweight.

[0019] Optionally, both the first control lever and the second control lever are provided with a finger ring buckle.

[0020] By adopting the above technical solution, the finger ring design allows doctors to hold the control rod more firmly, reducing operational errors caused by hand slippage or fatigue. At the same time, the finger ring design also provides a more humane operating experience, improving the comfort and efficiency of surgical operations.

[0021] Optionally, the second control rod is provided with a rack, the first control rod is connected to a locking rod, the locking rod is provided with a locking block, and the locking block is engaged with any tooth of the rack.

[0022] By adopting the above technical solution, the locking block and any tooth of the rack are connected to each other to achieve precise control of the opening, closing and rotation of the clamping part. By adjusting the position of the locking block, the position and angle of the clamping part can be stably controlled, improving the stability and reliability of the control assembly.

[0023] In summary, this application has at least one of the following beneficial effects:

[0024] 1. The design of the protrusion matching the groove on the clamp body makes the clamp more stable and avoids the problem of incomplete rotation caused by wear;

[0025] 2. The protrusion cooperates with the groove on the clamp body to help the operator find the clamping position more quickly and accurately, improving the efficiency and accuracy of the operation. Especially in complex surgical environments, this design can reduce operation time and reduce surgical risks;

[0026] 2. The first clamping part and the second clamping part adopt a semi-circular ring structure combined with a cylindrical vascular clamp clamp body, which reduces the risk of damage to surrounding tissues and reduces the possibility of infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the device holding the vascular clamp according to an embodiment of the present application;

[0028] Figure 2 This is an enlarged schematic diagram of point A in 1;

[0029] Figure 3 This is a schematic diagram of the distribution of the grooves of the clamping body according to an embodiment of the present application;

[0030] Figure 4 This is a cross-sectional view of the overall structure of the control assembly according to an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the structure of the rack and the locking rod in an embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the overall structure of the vascular clamp adapted for use in the embodiment of the present application.

[0034] Explanation of the accompanying drawings: 100, vascular clamp; 10, first clamping part; 11, support arm; 12, clamping section; 13, accommodating groove; 20, second clamping part; 21, rotating shaft; 30, protrusion; 40, clamping body; 41, groove; 500, control assembly; 510, first control body; 511, first connecting rod; 512, first control rod; 5121, through groove; 5122, locking rod; 5123, locking block; 520, second control body; 521, second connecting rod; 522, second control rod; 5221, rack; 523, connecting plate; 530, pin; 540, finger ring buckle; 60, sleeve; 61, plug-in groove; 70, ring; 80, sealing ring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-7 This application is described in further detail.

[0036] Reference Figure 1 and Figure 2 The present invention provides a device for controlling the rotation angle of a vascular clamp, including a first clamping portion 10 and a second clamping portion 20, and a control assembly 500 for controlling the movement of the first clamping portion 10 and the second clamping portion 20 toward or away from each other. The first clamping portion 10 and the second clamping portion 20 are rotatably connected. Each of the first clamping portion 10 and the second clamping portion 20 is provided with a protrusion 30. The clamping body 40 of the vascular clamp 100 is provided with a groove 41, into which the protrusion 30 is inserted. At least three adjacent side surfaces of the protrusion 30 are in contact with the inner wall of the groove 41. The cooperation between the protrusion 30 and the groove 41 effectively prevents wear and improves operational stability.

[0037] Reference Figure 3 The clamping body 40 of the vascular clamp 100 is a cylindrical structure, and a plurality of grooves 41 are evenly spaced along the circumference of the clamping body 40 , preferably six in this embodiment.

[0038] Reference Figure 2Specifically, the first clamping part 10 and the second clamping part 20 have similar structures, both of which include a support arm 11 and a clamping section 12. The support arm 11 and the clamping section 12 are integrally arranged, the clamping section 12 is a semicircular ring structure, and the protrusion 30 is located on the inner arc surface of the clamping section 12. The support arm 11 is made of metal material (such as aluminum alloy or high-strength steel) to enhance structural stability. The clamping section 12 is made of nickel-titanium alloy, which ensures good clamping performance with its excellent elasticity and fatigue resistance. The protrusion 30 is treated with tungsten carbide coating to improve wear resistance and corrosion resistance to adapt to complex medical environments. The first clamping part 10 and the second clamping part 20 have the same material configuration to ensure uniform overall performance.

[0039] Reference Figure 4 Specifically, the control assembly 500 includes a first control body 510 for connecting to the first clamping portion 10 and a second control body 520 for connecting to the second clamping portion 20. The first control body 510 includes a first connecting rod 511 and a first control rod 512. One end of the first connecting rod 511 is fixedly connected to the support arm 11 of the first clamping portion 10, and the other end of the first connecting rod 511 is fixedly connected to the first control rod 512. The second control body 520 includes a second connecting rod 521 and a second control rod 522. One end of the second connecting rod 521 is rotatably connected to the first clamping portion 10 via a pin 530. The second connecting rod 521 drives the first clamping portion 10 to rotate, and the first clamping portion 10 rotates around the rotation axis 21 and approaches the second clamping portion 20. The other end of the second connecting rod 521 is connected to the second control rod 522 via a connecting piece 523. The ends of the connecting piece 523 are rotatably connected to the second connecting rod 521 and the second control rod 522, respectively. The first control rod 512 and the second control rod 522 are also rotatably connected at their ends near the first connecting rod 511 via a pin 530. When the second control rod 522 is pressed and the second control rod 522 and the first control rod 512 rotate toward each other around the pin 530, the rotating second control rod 522 moves horizontally with the second connecting rod 521 via the connecting piece 523. The second connecting rod 521 drives the second clamping portion 20 to rotate toward the first clamping portion 10 about the rotation axis 21.

[0040] Reference Figure 4 More specifically, the first connecting rod 511 is hollow inside, and the second connecting rod 521 passes through the first connecting rod 511. Both ends of the second connecting rod 521 pass through the first connecting rod 511, and one end of the second connecting rod 521 that is rotatably connected to the second clamping portion 20 has a bent section, so that the second clamping portion 20 can be accurately controlled to rotate closer to the first clamping portion 10.

[0041] Reference Figure 5The support arm 11 of the first clamping portion 10 defines a receiving slot 13. One end of the second clamping portion 20 rotatably connected to the second connecting rod 521 is located within the receiving slot 13 and contacts the wall of the receiving slot 13. The first clamping portion 10 and the second clamping portion 20 are also rotatably connected via the rotating shaft 21. The second connecting rod 521 extends into the receiving slot 13 and is rotatably connected to the second clamping portion 20. The first control rod 512 also defines a through-slot 5121 at one end fixedly connected to the first connecting rod 511. Opposite side walls of one end of the second control rod 522 fit against the inner wall of the through-slot 5121. One end of the second control rod 522 extends into the through-slot 5121 and is rotatably connected to the pin 530. This makes the connection between the first control rod 512 and the second control rod 522 more stable and the rotation angle more precise.

[0042] Reference Figure 4 More specifically, one end of the first connecting rod 511 is fixedly connected to the support arm 11 of the first clamping portion 10 via a sleeve 60. Both ends of the sleeve 60 have insertion grooves 61. The first clamping portion 10 is interference-fitted into the insertion grooves 61, and the first connecting rod 511 is also interference-fitted into the insertion grooves 61. A cylindrical collar 70 is also interference-fitted into the first connecting rod 511. A sealing ring 80 is provided between the collar 70 and the sleeve 60 to secure the position of the sealing ring 80. A sealing ring 80 is also provided between the first clamping portion 10 and the sleeve 60, and thus the first clamping portion 10 is also connected to the collar 70. The collar 70 defines an annular groove for one end of the sleeve 60 to extend into. The sealing ring 80 is located within the annular groove and contacts the end of the sleeve 60. The provision of the collar 70 and the sealing ring 80 enhances the sealing and connection security between the first connecting rod 511 and the first clamping portion 10. A gap is left between the sleeve 60 and the collar 70 and the inner wall of the second connecting rod 521 , which does not affect the sliding of the second connecting rod 521 in the first connecting rod 511 .

[0043] Reference Figure 4 More specifically, the first connecting rod 511 and the first control rod 512 are also fixedly connected via a sleeve 60. A collar 70 is also interference-fitted into the end of the first connecting rod 511 near the first control rod 512. A sealing ring 80 is installed between the collar 70 and the sleeve 60 to secure the position of the sealing ring 80. The first control rod 512 is interference-fitted with the collar 70. A sealing ring 80 is installed between the collar 70 of the first control rod 512 and the sleeve 60, ensuring a sealed connection between the first control rod 512 and the first connecting rod 511. The collar 70 at both ends of the first connecting rod 511 have the same outer diameter, and the outer diameter of the sleeve 60 is the same size as the outer diameter of the first connecting rod 511.

[0044] Reference Figure 6Both the first control lever 512 and the second control lever 522 are provided with a finger ring clasp 540, which allows a finger to pass through the finger ring clasp 540 to facilitate control of the first and second control levers 512 and 522. A rack 5221 is provided at the junction of the second control lever 522 and the finger ring clasp 540. The rack 5221 is arranged with ratchet-like teeth. A locking rod 5122 is provided at the junction of the first control lever 512 and the finger ring clasp 540. The locking rod 5122 is provided with a triangular locking block 5123. When the rack 5221 approaches the locking rod 5122, the locking block 5123 and the teeth engage with each other to form a self-locking effect.

[0045] Reference Figure 7 It should be noted that, in order to better control the rotation angle of the vascular clamp 100 after being clamped, the vascular clamp 100 preferably has a flexible connecting tube between the clamp body 40 and the handle of the vascular clamp 100. The handle has a self-locking function, and a drawstring is inserted into the connecting tube. The technology for controlling the clamp 100's clamping or releasing the blood vessel through the drawstring is prior art and will not be further described in detail in the embodiments of this application. When the vascular clamp 100 is clamped and rotated, the handle rotates at a smaller angle due to the flexible connecting tube, allowing the device holding the vascular clamp 100 to better apply force to the clamp body 40 of the vascular clamp 100, allowing the physician to better adjust the angle of the blood vessel and ensure the accuracy of the anastomosis.

[0046] The implementation principle of a device capable of controlling the rotation angle of a vascular clamp according to an embodiment of the present application is as follows: During surgery, surgeons often need to perform delicate manipulation and adjust the position of tissue. The cooperation between the protrusion 30 and the groove 41 can help the operator find the clamping position more quickly and accurately, thereby improving the efficiency and accuracy of the operation. Furthermore, the cooperation between the groove 41 and the protrusion 30 of the vascular clamp 100 can effectively control the rotation angle of the vascular clamp 100, allowing the surgeon to accurately adjust the tissue to the desired position and avoid over- or under-rotation that could affect the surgical outcome. For example, during cardiac surgery, vascular anastomosis requires extremely high precision. This rotation control function can help the surgeon better adjust the angle of the vessel to ensure the accuracy of the anastomosis. It can also provide greater clamping force, ensuring a more secure clamping of the vessel and other tissues during surgery and other operations, thereby preventing vascular damage or surgical errors caused by unstable clamping.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device capable of controlling the rotation angle of a vascular clamp, characterized in that: The vascular clamp (100) comprises a first clamping portion (10) and a second clamping portion (20), and a control component (500) for controlling the first clamping portion (10) and the second clamping portion (20) to move closer or farther away. The first clamping portion (10) and the second clamping portion (20) are rotatably connected. Both the first clamping portion (10) and the second clamping portion (20) are provided with a protrusion (30). The clamping body (40) of the vascular clamp (100) is provided with a groove (41), and the protrusion (30) and the groove (41) cooperate with each other.

2. The device for controlling the rotation angle of a vascular clamp according to claim 1, characterized in that: The clamping body (40) of the vascular clamp (100) is a cylindrical structure, and the grooves (41) are evenly spaced along the circumference of the clamping body (40).

3. The device for controlling the rotation angle of a vascular clamp according to claim 2, characterized in that: The first clamping portion (10) and the second clamping portion (20) both comprise a semicircular ring structure.

4. The device for controlling the rotation angle of a vascular clamp according to claim 1, characterized in that: The control assembly (500) comprises a first control body (510) for connecting to the first clamping portion (10) and a second control body (520) for connecting to the second clamping portion (20), wherein the first control body (510) and the second control body (520) move closer to or farther from each other by rotating.

5. The device for controlling the rotation angle of a vascular clamp according to claim 4, characterized in that: The first control body (510) includes a first connecting rod (511) and a first control rod (512), one end of the first connecting rod (511) is fixedly connected to the first clamping portion (10), and the other end of the first connecting rod (511) is fixedly connected to the first control rod (512). The second control body (520) includes a second connecting rod (521) and a second control rod (522), one end of the second connecting rod (521) is rotatably connected to the first clamping portion (10), and the other end of the second connecting rod (521) is rotatably connected to the second control rod (522). An end of the first control rod (512) close to the first connecting rod (511) is rotatably connected to the second control rod (522) via a pin shaft (530).

6. The device for controlling the rotation angle of a vascular clamp according to claim 5, characterized in that: The first connecting rod (511) is hollow inside, the second connecting rod (521) passes through the first connecting rod (511), and both ends of the second connecting rod (521) are located outside the first connecting rod (511).

7. The device for controlling the rotation angle of a vascular clamp according to claim 5, characterized in that: The first control rod (512) and the second control rod (522) are both provided with a finger ring buckle (540).

8. The device for controlling the clamping rotation angle of a vascular clamp according to claim 5, characterized in that: The second control rod (522) is provided with a rack (5221), the first control rod (512) is connected to a locking rod (5122), the locking rod (5122) is provided with a locking block (5123), and the locking block (5123) is engaged with any one tooth of the rack (5221).

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